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Patented Nov. 13, 1894.

INVENTIUR WFI'NEESEE i ATTDRNEY E'NITED STATES PATENT DAVID M. MONROE,OF BALTIMORE, MARYLAND, ASSIGNOR TO B. TYNES SMITH, OF SAME PLACE.

DEVICE FOR APPLYING SOLDERING=FLUX.

SPECIFICATION forming part of Letters Patent No. 529,336, dated November13, 1894. Application filed March 13,1894. Serial No. 503.411, (Nomodel.)

To wZZ whom it may concern.-

Be it known that I, DAVID M. MONROE, a citizen of the United States,residing at Baltimore, in the State, of Maryland, have invented certainnew and useful Improvements in Devices for Applying Soldering-Flux, ofwhich the following is a specification;

This invention relates to new and improved means for applying flux tocans, or other tinplate vessels, preparatory to soldering them.

The object of the invention is to provide a mechanical device which willhave the action of a brush or swab and apply flux to a moving can orother vessel.

For the purpose of illustrating my invention I have shown in theaccompanying drawings my improved flux brush or swab applied to andcombined with various co-acting parts of a can-soldering machine forwhich Letters Patent of the United States were granted me September 27,1892, No. 483,234.

Referring to the drawings herewith,Figure 1 is a side elevation, a partbeing in section, of my flux-applying device. Fig. 2 is a top or planview of the same showing also a can-holder supporting a can in positionabove the flux-applying device. Fig. 3 is an elevation showing theflux-applying device and means to actuate it. Fig. 4 isa plan view ofthe actuating means shown in Fig. 3. Fig.5 is a top or plan view of theflux brush or swab, as seen in Fig. 3. Fig. 6 is an elevation showingparts of a can-soldering machine as illustrated in my United StatesPatent No. 483,234, and also showing my flux-applying device. Fig. 71s atop or plan view of the parts shown in Fig. 6.

All the parts of the can-soldering machine illustrated in my Patent No.483,234, which are shown in these drawings, are here designated by thesame numerals as they are in the patent referred to. All the otherparts, being those that relate to my flux-applying device, are heredesignated by letters and figures of reference.

The letter, A, designates a pan or receptacle to contain the flux. Thebrush or swab, d, is attached to an arm, B, which is pivoted so as totilt in a vertical plane and first dip the brush, d, into the pan, A,where the brush becomes charged with flux, and then raise it to aposition where it may come in contact with the seam of a can and applythe flux to such seam. The brush-arm B, is here shown as pivoted to theside of the pan. The pan has at its side two ears, e, and a pivot-pin,e, passes through the arm and also throughthe ears. The pivoted arm isprovided with a vertical screw, f, which is adjustable up and down so asto haveits lower end project more or less below the arm. Then the brush,d, dips into the pan the lower end of the screw will strike against thebottom of the pan. This screw serves as a stop to limit the down-tilt ordip of the brush into the flux. The outer or short end of the pivotedarm is provided with a weight, g, which has a set screw, g,

and is adjustable along the arm This weight serves as a counterbalance.A stop is also provided to limit the raise or up-tilt of the brush-endof the arm. This stop consists of a pendent rod, h, whose upper end isscrewthreaded and attached to the weight, g. The lower end of thestop-rod, h, when the brush is raised, comes in contact with astationary bar, It

In Figs. 1 and 2, no mechanical means are shown for actuating or tiltingthe pivoted brush-arm, B, and the same might be done manually, but inFigs. 3, 4, and 5 means are illustrated to cause the brush-arm to tiltautomatically. The pivot-pin, c, has an attached lever, t', and a rod,j, connects this lever with a lateral arm, lo, fixed rigidly on ahorizontal rock-shaft, O ,which is mounted in bearings, I. To cause thisshaft, 0, to rock first one way and then the other and thereby actuatethe tilting brush-arm, B, the rock-shaft has an arm, m, rigidly attachedand projecting at one side, and a weight, m, is on this arm. At theopposite side is a cam-arm, n, which co-acts with a cam, 11 fixed on thevertical shaft, 11. The camm, has an opening, M, at

one side which allows the cam-arm, it, to tip up at the time the weight,m, tilts down, but when, by the rotation of the vertical shaft, 11, theother side of the cam comes on top of the cam-arm, n, as in Fig. 3, thesaid arm is depressed and then the weight, m, tilts up. Thus the weightrocks the shaft, 0, one way,

and the cam,n', and arm, it, rocks it the other way, and the rocking ofthe shaft actuates the brush-arm, B.

The can-holder or can-carrier, 18, is a suitable frame having within itat one end a disk, 69, which is mounted on a short spindle and is freeto rotate. At the other end of the frame is a spindle, 67, carryingwithin the frame a disk, 70, and the spindle has a pinion, 22. Thevessel or can, 57, which is to be fiuxed and soldered is held or clampedbetween the two disks when it is revolved. The spindle, 67, by means ofa feather on it, has an endwise movement through the pinion, 22, asshown and described in my former patent. This endwise movement allowsthe disk, 70, to move awayfrom the otherdisk, 69,and enables a can to beplaced in position between them. The can carrier is pivoted at, 2, tojaws, 17, attached to a plate, 16, which is mounted loosely on thevertical shaft, 11, so that the said shaft may rotate withoutnecessarily rotating the plate. In my Patent No. 483,234, previouslyreferred to, this plate, 16, and the cancarriers, 18, which are pivotedto it, have an intermittent rotary movement in a horizontal plane, and Iwould prefer to use this construction in connection with thepivotedflux-brush.

A crown gear wheel, 21, is mounted rigidly on the vertical shaft, 11,and has a continuous rotary motion. The pinion, 22, gears with thiscrown wheel and thereby a revoluble motion is imparted to the disk, 70,and to the can, 57.

A table, 10, supports the machine parts and a circular track, 20, isemployed on which a roller, 19, travels,this roller being on the outeror free end of the can-carrier, 18.

The soldering apparatus in the present instance comprises briefly, areel, 27, on which the wire solder, 25, is wound. This wire passes fromthe reel down through a guide-tube, 28, the nozzle of which is inproximity to the can. Blow-pipes or burners, 26, are located so as tomelt the wire solder and also heat the can. In the present instancethese parts are shown in the position for soldering the seam at one endof a can.

It is to be understood that a machine of this character would have anumber of cancarriers, 18,and that one end or both ends of a can may befluxed and soldered before re- 'moval of the can.

The operation of the fluxing device is as follows: A can being suitablymounted above the flux pan and revolved, and flux being in the pan, itis only necesary to first tilt down the arm, B, and dip the brush in theflux, and

then to tilt up the arm so as to apply the flux brush in contact withthe can.

In the machine, where mechanism is employed to actuate the tiltingbrush-arm, the action of the latter in applying flux is the same. i

In a. machine where the can which is fluxed is also soldered, see Figs.6 and 7, the can' pauses above the flux-applying brush-arm, B, where oneseam is fluxed, and then by the next movement the can is carried to theg aide-tube, 28, where the wire solder is melted and applied to the seamjust fluxed.

It is obvious that my improved pivoted flux brush may be applied tomachines of very different construction from that shown in theaccompanying drawings.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a device for applying flux, the combination of a pan to containflux; a movable holder above the flux pan and adapted to carry thevessel that is to be fluxed; an arm having at one end a brush or swaband pivoted to tilt in a vertical plane and dip the brush or swab in theflux and then raise and apply said brush or swab to the vessel in theholder; and an adjustable stop device attached to the pivoted arm andadapted to limit the extent of the dip of the brush or swab into theflux.

2. In a device for applying flux to vessels which are to be soldered,the combination of a fiux-pan; a pivoted brush or swab to dip into theflux and then apply it to the vessel; and an adjustable counterbalanceon the pivoted brush.

3. In a device for applying flux, the combination of a pan to containflux; a movable holder above the flux-pan and adapted to carry thevessel that is to be fluxed; an arm having at one end a brush or swaband pivoted to tilt in a vertical plane and dip the brush or swab in theflux and then raise and apply said brush or swab to the vessel in theholder; and an-adjustable pendent stop device attached to the pivotedarm and adapted to limit the raise or up-tilt of said arm.

4. In a machine for fluxing and soldering the end seams of cylindricalvessels, the combination of a device for applying solder to the endseams of a vessel; a stationary pan to contain flux; an arm having atone end a brush or swab and pivoted to tilt in a vertical plane and dipthe brush or swab into the flux and'then raise and apply the flux to theseams of the vessel; a revoluble holder adapted to carry the vessel thatis to be fluxed and soldered; and means to impart to said holdermovement in a horizontal plane and thereby carry the vessel from theflux brush to the said soldering device.

In testimony whereof Iaffix my signature in the presence of twowitnesses.

DAVID M. MONROE.

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